HYDRAULIC FITTING AND METHOD OF MANUFACTURE

摘要

A hydraulic cone fitting includes a tube segment and a substantially frustoconical connecting segment integrally formed at one end of the tube segment. The connecting segment generally includes a substantially frustoconical sealing surface and a substantially frustoconical back surface. The connecting segment may be formed by punching or rolling the end of the tube segment. A method of manufacturing a hydraulic fitting includes expanding an end portion of a tube to form an expanded portion. Inner and outer regions of the expanded portion are then reduced, via punching or rolling operations, to form substantially frustoconical back and sealing surfaces, respectively.